Bridge_Inspection_Rpt_STR_5460-100P.pdf

STRUCTURE SUMMARY STRUCTURE NO. 5460-100P

DEEP CREEK CAMPGROUND ENTRANCE BRIDGE INSPECTION DATE: 5/23/17

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ....... PRESTRESSED CONCRETE NO. OF MAIN SPANS:

MAIN SPAN TYPE: ............... SLAB NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 8 STRUCT. TOTAL LENGTH: .. 129.8 FT (39.6 M)

DECK TYPE: ......................... CONCRETE PRECAST PANELS MAX. SPAN LENGTH: .......... 43.3 FT (13.2 M)

WEARING SURFACE: .......... INTEGRAL CONCRETE DECK WIDTH: ...................... 32.0 FT (9.8 M)

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH: ..... 25.6 FT (7.8 M)

PIER FOUNDATION(S): ........ SPREAD FTG ON BEARING MAT'L YEAR BUILT:

ABUTMENT / PIER MAT'L: ... CONCRETE YEAR RECONSTRUCTED: .. N/A

PROJ./PLAN REF. NO: ......... GRSM 109(1) / SKEW ANGLE: ..................... 20 °

NPS ROAD CLASS: .............. 2 - CONNECTOR ROAD FRACTURE CRITICAL: ........ NO

STRUCTURE HISTORY: ...... 1999-STRUCTURE REPLACED.

LOCATION

GREAT SMOKY MOUNTAINS NATIONAL PARK MILE POINT: ..................... 0.00 (KM PT 0.00)

STATE: ................................. NORTH CAROLINA LOCATION: 0.9 MILES FROM NPS ROUTE 11. (AT

DEEP CREEK CAMPGROUND). FACILITY CARRIED: ............ CAMPGROUND ENTRANCE ROAD

FEATURE INTERSECTED: .. DEEP CREEK

STRUCTURE EVALUATION SUMMARY

This prestressed concrete slab bridge is in good condition overall. Problems with this structure include cracking and delamination of the latex modified concrete wearing surface, a condition that is allowing water to penetrate to the superstructure. Additional problems include heavy flood debris accumulation on the upstream side of the east and west piers; lack of reflective object markers at the bridge corners; and debris and moss growth along the wingwalls.

Corrective measures should be taken as outlined in this report to prevent the possible development of more serious or costly problems in the future.

Since the previous inspection, some repair work has been completed on the deck surface over the piers and the abutments; however, a hollow sound was noticed at several locations when struck with a testing hammer, indicating possible delamination. The condition of the repairs will continue to be monitored during future inspection cycles.

INSPECTION TEAM: R. SILVESTRY, L. ELLIS

CONDITION ASSESSMENT:

REINALDO SILVESTRY, FIELD TEAM LEADER 703-404-6251

REPORT REVIEW:

MARCUS MILLER, P.E., BRIDGE INSPECTION ENGINEER 703-404-6252

REPORT APPROVAL: DATE: 10/4/17

JORGOMAI CEESAY, PH.D., P.E., BIP SUPERVISORY ENGINEER 703-404-6244

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5460-100P

A (Critical) - Structure is closed, in imminent danger of collapse, or presents a critical safety hazard.

B (Major) - Structure exhibits severe deterioration, presents a safety hazard, or is designated a high priority due to age and/or condition.

C (Moderate) - Structure is deficient, functionally obsolete, or requires substantial repairs to prevent a serious deficiency or unsafe condition.

D (Minor) - Structure is generally in good condition. Preventative maintenance may be required.

E (Special) - Structure is under construction or reconstruction.

D226 PRIORITY OF IMPROVEMENT

ITEM

NO.

MAINTENANCE RECOMMENDATIONS

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

61.4 REMOVE FLOOD DEBRIS FROM UPSTREAM SIDE OF EAST AND WEST PIERS. 1 LS

222.7 INSTALL REFLECTIVE OBJECT MARKERS AT BRIDGE CORNERS. 4 EA

60.6 REMOVE VEGETATION GROWTH FROM WINGWALLS. 1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

58.1 SEAL DECK SURFACE WITH APPROVED SEALANT 1 LS

CONTRACT COSTS FOR MOBILIZATION, TRAFFIC CONTROL, AND

DESIGN CONSTRUCTION ENGINEERING (APPROXIMATELY 70%

TOTAL REHAB COST) PLUS PARK LOCATION FACTOR.

1 LS

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

PRELIMINARY ESTIMATE TOTAL* :

(*Includes typical contract costs for mobilization, traffic control, and design/construction engineering; but does not include detour bridges, work beyond the bridge limits, or work not listed above. Estimates are approximate and are for preliminary planning purposes only; they should not be used as a complete or final engineers estimate.)

REMARKS: Cost estimates assume that recommended actions will be combined with similar work being performed on other structures. Condition of wearing surface will continue to be monitored.

FIELD INSPECTION REPORT STRUCTURE NO. 5460-100P

CONDITION RATING CODES FOR ITEMS 58 - 62, 222, 223

N NOT APPLICABLE

9 EXCELLENT CONDITION

8 VERY GOOD CONDITION - no problems noted.

7 GOOD CONDITION - some minor problems.

6 SATISFACTORY CONDITION - structural elements show some minor deterioration.

5 FAIR CONDITION - all primary structural elements are sound but may have minor section loss, cracking, spalling, or scour.

4 POOR CONDITION - advanced section loss, deterioration, spalling, or scour.

3 SERIOUS CONDITION - loss of section, deterioration, spalling, or scour have seriously affected primary structural components. Local failures are possible.

Fatigue cracks in steel or shear cracks in concrete may be present.

2 CRITICAL CONDITION - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present or scour may have removed substructure support. Unless closely monitored it may be necessary to close the structure until corrective action can be taken.

1 “IMMINENT” FAILURE CONDITION - major deterioration or sec ion loss present in critical structural components or obvious vertical or horizontal movement affecting structure stability. Structure is closed to traffic but corrective action may return structure to light service.

0 FAILED CONDITION - out of service; beyond corrective action.

CONDITION RATING CODE EQUIVALENTS FOR SUB-ELEMENTS

G = GOOD (CODES 7 - 9) F = FAIR (CODES 5 - 6) P = POOR (CODES 0 - 4)

58. DECK

1. DECK SLAB

2. EXPANSION JOINTS

3. WEARING SURFACE

4. RIDEABILITY

5. CURBS, SIDEWALKS, AND MEDIAN

6. PARAPETS AND/OR RAILINGS

7. DRAINS AND DRAINAGE

8. UTILITIES

9. DEFLECTION AND/OR VIBRATION

10. OTHER

59. SUPERSTRUCTURE

1. BEARING DEVICES

2. GIRDERS OR BEAMS

3. ARCH(ES) OR SLAB(S)

4. FLOOR BEAMS AND STRINGERS

5. TRUSSES

6. DIAPHRAGMS AND BRACING

7. PAINT

8. FASCIA(E)

9. DEFLECTION AND/OR VIBRATION

10. ALIGNMENT

11. OTHER

60. SUBSTRUCTURE

ABUTMENTS

1. BREASTWALLS OR COLUMNS

2. PILE BENTS

3. CAPS AND/OR BEARING SEATS

4. BACKWALLS AND/OR BULKHEADS

5. FOUNDATIONS

6. WINGWALLS

7. WEEP HOLES

8. EXPANSION JOINTS

9. EROSION AND/OR SCOUR

10. SETTLEMENT OR DEFLECTION

11. SLOPE PROTECTION

12. OTHER

PIER(S)

13. WALLS AND/OR COLUMNS

14. PILE BENTS

15. CAPS AND/OR BEARING SEATS

16. FOUNDATIONS

17. EROSION AND/OR SCOUR

18. SETTLEMENT OR DEFLECTION

19. OTHER

F G F G G G G N G

N N G N N N N N G G N

G N G N N G G N G G N N

G N G N G G N

58.1,3

58.2,7

58.6

58.10

59.3

60.3,15

60.6

60.9

60.15

ITEM REFERENCE AND REMARKS

MODERATE TRANSVERSE AND LONGITUDINAL CRACKING WITH

MINOR DELAMINATION OF CONCRETE WEARING SURFACE IN

VICINITY OF EXPANSION JOINTS, SOME WITH EFFLORESCENCE;

MINOR LONGITUDINAL CRACKING OF WEARING SURFACE ABOVE

LONGITUDINAL JOINTS BETWEEN BEAM SLAB UNITS.

PATCHED AREAS OVER PIERS, ABUTMENTS, AND ALONG WEST

CURBLINE FROM PREVIOUS CONCRETE REPAIRS. HOLLOW SOUND

ON PREVIOUSLY PATCHED AREAS ON SEVERAL LOCATIONS.

MINOR DEBRIS ACCUMULATION AT ENDS OF EXPANSION JOINTS.

MINOR DEBRIS ACCUMULATION AND MOSS GROWTH ALONG SOUTH

CURBLINE.

MINOR CHECKING AND SPLITTING OF TIMBER RAILINGS.

DOUBLE YELLOW CENTERLINE STRIPING REPAINTED SINCE

PREVIOUS INSPECTION.

EFFLORESCENCE FROM JOINTS ALONG UNDERSIDE OF BEAM SLAB

UNITS.

MINOR VERTICAL CRACKING WITH EFFLORESCENCE ON BOTH

ABUTMENT BEARING SEATS. MINOR LEAKAGE AND WATER

STAINING ON BEARING SEATS AND CAPS DUE TO CRACKING OF

LATEX MODIFIED CONCRETE WEARING SURFACE.

MINOR DETERIORATION OF WINGWALL MASONRY MORTAR JOINTS

WITH EFFLORESCENCE; MINOR TO MODERATE VEGETATION

GROWTH.

MINOR EROSION AT END OF WINGWALLS.

MINOR HORIZONTAL CRACKING OF PIER CAPS, PRIMARILY IN

CONSTRUCTION JOINTS AT ENDS; SOME WITH EFFLORESCENCE.

FIELD INSPECTION REPORT STRUCTURE NO. 5460-100P

ITEM REFERENCE AND REMARKS

STREAM BED COMPOSITION : 9.

AVERAGE CLEAR OPENING 8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING 6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION 3.

EROSION AND/OR SCOUR 2.

ALIGNMENT 1.

61. CHANNEL 7

G G G F N

HIGH

SUFF

8 FT.

ROCK

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS 7.

SETTLEMENT 6.

EROSION 5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

1. APPROACH SLABS G

N N G G G G G N

223. RETAINING WALL N

OTHER 6.

SETTLEMENT OR DEFLECTION 5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

1. WALL

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

N N N

61.4 MODERATE FLOOD DEBRIS ACCUMULATION AT UPSTREAM ENDS OF

EAST AND WEST PIERS. SMALL VEGETATED ISLAND IN CHANNEL,

UPSTREAM OF EAST PIER.

61.6 STREAM OVERTOPS CHANNEL BANKS DURING HEAVY RAINS (NOT

OBSERVED DURING THIS INSPECTION).

222.1 WIDESPREAD LONGITUDINAL CRACKING OF WEST APPROACH SLAB

OVER WESTBOUND LANE. MINOR LONGITUDINAL CRACK OF EAST

APPROACH SLAB OVER WESTBOUND LANE.

222.6 MINOR SETTLEMENT OF APPROACH PAVEMENT BEHIND APPROACH

SLABS.

222.7 REFLECTIVE OBJECT MARKERS NOT PROVIDED AT BRIDGE

CORNERS.

STOP SIGN CANTILEVERED OFF WEST END OF NORTH RAILING.

TRAFFIC SAFETY RATING CODES

N

Does not meet standards or a safety feature is required and none is provided.

Meets currently acceptable standards.

Not applicable or a safety feature is not required.

STRUCTURE LOAD RATING STRUCTURE NO. 5460-100P

TRUCK TYPE

INVENTORY RATING (NORMAL TRAFFIC) OPERATING RATING (MAXIMUM LOAD)

TONS METRIC TONS TONS METRIC TONS

H 31 28 53 48

HS 43 39 73 66

TYPE 3 39 35 65 59

TYPE 3S2 60 54 101 92

TYPE 3-3 76 69 126 114

DESIGN LOADING: H20 (M18)

X CAPACITY MEETS OR EXCEEDS DESIGN LOAD

CAPACITY IS LESS THAN DESIGN LOAD

ORIGINAL LOAD RATING CALCULATION APPLICABLE

ORIGINAL LOAD RATING CALCULATION REVISED

DATE OF LOAD RATING CALCULATION: 6/16

LOAD RATING CONTROLLED BY:

REMARKS:

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5460-100P

STRUCTURE IDENTIFICATION

(201) PARK: GREAT SMOKY MOUNTAINS NATIONAL PARK

(202) STRUCTURE NAME: .......... DEEP CREEK CAMPGROUND ENTRANCE

(203) STRUCTURE KIND: ............ 1 - BRIDGE

(204) STRUCTURE NUMBER: ..... 5460-100P

(205) NPS REGION: .................... 4 - SOUTHEAST

(206) ROUTE CODE NUMBER: ... 138

(207) ROAD SECTION NO: .......... 100P

(208) NPS ROAD CLASS: ............ 2 - CONNECTOR ROAD

(209) WITHIN NPS BNDRY?: ....... YES

(210) OPERATING UNIT: ............. S. DIST.

(211) PROJECT NO(S): ................ GRSM 109(1)

(212) DRAWING NUMBERS:

(21) MAINTAINED BY: ................. 66 - NATIONAL PARK SERVICE

(22) OWNER: ............................... 66 - NATIONAL PARK SERVICE

(1) STATE:

(2) STATE HWY. AGENCY DIST:

(3) COUNTY CODE:

(4) CITY/PLACE CODE:

(5) INVENTORY ROUTE:

(6) FEATURES INTERSECTED:

(7) FACILITY CARRIED:

(8) STATE STRUCTURE NO:

(9) LOCATION:

(10) INV. RTE. - MIN. VERT. CLR: ..

(11) MILE POINT:

(27) YEAR BUILT:

(106) YEAR RECONSTRUCTED:

(20) TOLL:

(37) HISTORICAL DESIGNATION: ..

374 - NORTH CAROLINA (NC)

173 - SWAIN

164001380

DEEP CREEK

CAMPGROUND ENTRANCE R

5460100P0000000

0.9 MILES FROM NPS ROUTE

99.99 FT (99.99 M)

0.00 (KM PT 0.00)

N/A

3 - FREE ROAD

5 - NOT ELIGIBLE

STRUCTURE DESCRIPTION, FOUNDATION, AND DECK TYPE

(43A) MAIN STR. MATERIAL: ..

(43B) MAIN STR. TYPE:

(45) NO. OF MAIN SPANS:

(48) MAX. SPAN LENGTH:

(49) STRUCTURE LENGTH:

(216A) ABUTMENT #1 FDN:

(216B) ABUTMENT #2 FDN:

(217A) PREDOM. PIER FDN.: ..

(217B) SECOND. PIER FDN: ...

(107) DECK TYPE:

5 - PRESTRESSED CONCRETE

01 - SLAB

43.3 FT (13.2 M)

129.8 FT (39.6 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

2 - CONCRETE PRECAST PANELS

(44A) APPR. STR. MATERIAL: ........ 0 - OTHER

(44B) APPR. STR. TYPE: ................ 00 - OTHER

(46) NO. OF APPROACH SPANS: .. 0

(108) WEAR SURFACE/PROTECT SYSTEM:

A) TYPE WEARING SURFACE: .. 2 - INTEGRAL CONCRETE

B) TYPE MEMBRANE: ................. 0 - NONE

C) TYPE PROTECTION: .............. 0 - NONE

(218) IS SALT USED?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 4 - H20 (M18) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 43.0 TONS (39.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 73.0 TONS (66.2 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 5/17 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: N - 0 - NONE (A) FRACTURE CRITICAL: ... NO

INSP. EVERY: MONTHS - LAST INSP. : (220) SPECIAL STUDY TYPE: 0 - NONE

(B) UNDERWATER: .............. NO

(221) SPECIAL STUDY DATE: INSP. EVERY: MONTHS - LAST INSP. :

(C) SPECIAL INSPECTION: .. NO

INSP. EVERY: MONTHS - LAST INSP. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5460-100P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 25.6 FT (7.8 M)

(16) LATITUDE: ............................. 35°27'33.20"

(17) LONGITUDE: ......................... 83°26'15.80"

(19) DETOUR LENGTH: ............... 3 MI (5 KM)

(28A) LANES ON STRUCT:

(28B) LANES UNDER STRUCT: ... 00

(42A) SERVICE ON: ..................... 5 - HIGHWAY-PEDESTRIAN

(42B) SERVICE UNDER: .............. 5 - WATERWAY

(29) AVG. DAILY TRAFFIC:

(30) YEAR OF ADT:

(114) FUTURE ADT:

(115) YEAR OF FUTURE ADT:

(101) PARALLEL STRUCTURE: ... N - NONE

(38) NAVIGATION CONTROL?: ... 0

(39) VERTICAL CLEARANCE: ...... 0.0 FT (0.0 M)

(40) HORIZ. CLEARANCE: ........... 0.0 FT (0.0 M)

(111) ABUT. OR PIER PROT:

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M)

(56) LEFT: ......................... 0.0 FT (0.0 M)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK:

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL:

(62) CULVERT: ........................... N

(222) APPROACHES:

(223) RETAINING WALL: ........... N

(36) TRAFFIC SAFETY FEAT: ... 1NNN

(75A) TYPE OF WORK:

(75B) WORK DONE BY:

(76) IMPROVEMENT LENGTH: ..

(52) DECK WIDTH:

(32) APPR. ROADWAY WIDTH:

(213) APPR. PAVEMENT WIDTH:

LEFT SHOULDER:

RIGHT SHOULDER:

(33) BRIDGE MEDIAN:

(34) SKEW ANGLE:

(35) DECK FLARE?:

(47) TOTAL HORIZ. CLEARANCE:

(50) SIDEWALKS:

LEFT :

RIGHT :

(214) BRIDGE RAIL TYPE:

RAIL CONFIGURATION:

MATERIAL:

DESIGN TYPE:

(215) BRIDGE RAIL HEIGHT:

(53) MIN. VRT. CLEAR. OVER DECK:

(54) MIN. VRT. UNDERCLEARANCE:

32.0 FT (9.8 M)

30.0 FT (9.1 M)

23.6 FT (7.2 M)

4.3 FT (1.3 M)

2.0 FT (0.6 M)

0 - NO MEDIAN

20 °

NO

25.6 FT (7.8 M)

0.0 FT (0.0 M)

4.4 FT (1.4 M)

1 - FULL HEIGHT (NO PARAPE

7 - TIMBER

1 - CONTINUOUS RAIL

3.67 FT (1.12 M)

99.99 FT (99.99 M)

0.00 FT (0.00 M)

(67) STRUCTURAL EVALUATION:

(68) DECK GEOMETRY:

(69) UNDERCLEARANCES:

(71) WATERWAY ADEQUACY:

(72) APPROACH ALIGNMENT:

(113) SCOUR CRITICAL:

(225) PURPOSE OF IMPROVEMENT:

(226) PRIORITY OF IMPROVEMENT:

(227) MAINTENANCE COST:

(228) REHAB./RECONSTR. COST: ...

(229) CONSTRUCTION COST:

N

5 - Stable; scour within limits of

2 - REHAB/RECONSTRUCTION

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1999-STRUCTURE REPLACED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

http:83�26'15.80 http:35�27'33.20

APPENDIX STRUCTURE NO. 5460-100P

PHOTOGRAPHS STRUCTURE NO. 5460-100P

FLOW

PHOTO #1 - GENERAL VIEW LOOKING WEST TOWARD NPS ROUTE

DEP-149

PHOTO #2 - SOUTH (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING WEST

PHOTO #4 - FULL LENGTH OF BRIDGE

LONGITUDINAL CRACKING OF CONCRETE

WEARING SURFACE DUE TO DIFFERENTIAL

MOVEMENT OF PRECAST BEAMS, EASTBOUND

LANE

PHOTO #5 - LONGITUDINAL CRACKING OF

CONCRETE WEARING SURFACE DUE TO

DIFFERENTIAL MOVEMENT OF PRECAST

BEAMS, WESTBOUND LANE

PHOTO #6 - TYPICAL SETTLEMENT AT END OF

APPROACH SLAB, EAST APPROACH SHOWN;

NOTE SPALLING OF CONCRETE SLAB EDGE

FOR FULL WIDTH

PHOTO #7 - SPALLING OF CONCRETE EDGE

TO EXPANSION JOINT; PARTIAL DEPTH

PATCHING OF CONCRETE PERFORMED SINCE

PREVIOUS INSPECTION; EAST EXPANSION

JOINT OVER EAST ABUTMENT SHOWN

PHOTO #8 - CLOSEUP OF PREVIOUS PHOTO

PHOTO #9 - TYPICAL CHECKING OF TIMBER RAILING; NORTHWEST

RAILING SHOWN

PHOTO #10 - TYPICAL VEGETATION GROWTH ON WINGWALL MASONRY

MORTAR JOINTS; SOUTHWEST WINGWALL SHOWN

PHOTO #11 - EROSION AT NORTHEAST

WINGWALL ALONG BASE; NOTE TYPICAL

VEGETATION GROWTH ON WINGWALLS

PHOTO #12 - GENERAL UNDERSIDE VIEW OF

EAST SPAN LOOKING WEST

PHOTO #13 - WATER LEAKAGE BETWEEN BOX BEAMS; EAST SIDE OF

EAST PIER

PHOTO #14 - GENERAL VIEW OF EAST ABUTMENT

PHOTO #15 - GENERAL VIEW OF WEST ABUTMENT; NOTE

EFFLORESCENCE AND WATER STAINING

PHOTO #16 - VEGETATION BERM AND DEBRIS AT NORTH SIDE OF PIER

#1 AND DEBRIS ACCUMULATION AROUND EAST PIER, NORTH SIDE

PHOTO #17 - GENERAL VIEW OF CHANNEL LOOKING UPSTREAM FROM

DECK

PHOTO #18 - GENERAL VIEW OF CHANNEL LOOKING DOWNSTREAM

FROM DECK